list_connected_devices

列出当前已连接的全部设备：{ address, deviceKind, connected }。

SERVERDG-MCP SOURCE0xnullai/dg-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/0xnullai-dg-mcp/list-connected-devices.md

WHAT IT DOES

What list_connected_devices does on DG-MCP

AI agents call list_connected_devices to retrieve information from DG-MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_connected_devices is rated Low

Even though list_connected_devices only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_connected_devices safely

PolicyLayer is an MCP gateway: it sits between your AI agents and DG-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_connected_devices, this is the rule to start with:

list_connected_devices Allowed

list_connected_devices is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_connected_devices": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect DG-MCP, apply this rule, and every list_connected_devices call is checked against it from then on.

FAQ

Questions about list_connected_devices

What does the list_connected_devices tool do? +

列出当前已连接的全部设备：{ address, deviceKind, connected }。. It is categorised as a Read tool in the DG-MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_connected_devices? +

Register the DG MCP server in PolicyLayer and add a rule for list_connected_devices: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches DG-MCP. Nothing to install.

What risk level is list_connected_devices? +

list_connected_devices is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_connected_devices? +

Yes. Add a rate_limit block to the list_connected_devices rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block list_connected_devices completely? +

Set action: deny in the PolicyLayer policy for list_connected_devices. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides list_connected_devices? +

list_connected_devices is provided by the DG MCP server (0xnullai/dg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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